Download - HireVietnamese - Lesson 4
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HIREVIETNAMESE
iPhone TrainingLesson 4
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Contents
Storing Data1
Example 44
Exercise 45
2
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Storing Data
3
Setting user Preferences with NSUserDefaults
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NSUserDefaults
Get a Handle to the NSUserDefaults object NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
Saving [prefs setObject:ObjectToSave forKey:”KEY”];
Retrieving NSString *myString = [prefs stringForKey:@“KEY"];
4
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Storing Data
5
Saving/Retrieving Data from a SQLite Database
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Create Database
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Check and Create DB
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Select Statement
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Delete Statement
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Add Statement
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Update Statement
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Example 4
12
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Exercise 4
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